Schwarzschild geodesics

Okay kiddo, so imagine you have a big ball and you throw a smaller ball around it. That smaller ball follows a path or a line, right? Now, let's imagine the big ball is actually a black hole - a place in space where gravity is super strong and even light can't escape.

When you throw that smaller ball, it follows what we call a geodesic. This is like a path or a line that follows the curve or bend in space caused by the massive gravity of the black hole.

Now, a famous physicist named Karl Schwarzschild came up with some equations to describe these geodesics - basically, he figured out a way to mathematically show how objects would move around a black hole. His work was super important because it showed us how black holes behave and how they affect the things around them.

So, schwarzschild geodesics basically refer to the mathematical equations we use to understand how objects move around a black hole. It's like a big puzzle that scientists have been working on for a long time, and it helps us learn more about these mysterious and fascinating objects in space.